Automatic update of changed FB in GX-IEC

[Guest Guest_John]

When I perform a change in a FB it's instances "get a cross" in them and I have to re-insert them. Is it possible to make an automatic update of all instances of the FB everywhery it's used in the PUO_Pool? it's so boring to update 120 FBs by hand.

[navillusi 2]

In short, No, there is no way to auto update function blocks. The function blocks only need updating manually if there is significant change to the structure of the block, i.e. a pin is added or removed. If you change the internal code within the block and leave the outside unchanged, the block will auto update next time you compile. The tip is to always add enough pins before you add the blocks to your project!